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Water: Waste Treatment

Effluent Guidelines Proposal to Amend Effluent Limitations Guidelines for the Centralized Waste Treatment Point Source Category

out of date Note: EPA no longer updates this information, but it may be useful as a reference or resource.

We have proposed minor changes to the effluent guidelines for Centralized Waste Treatment. We are deleting limitations for five metals from certain sections of the regulation and correcting an error in the December 2000 rule.


Background

In December 2000, we promulgated effluent limitations for the Centralized Waste Treatment Point Source Category. This regulation established wastewater discharge standards for facilities that treat or recover metal-bearing, oily, and organic wastes, wastewater, or used material received from off-site. In response to a request from the regulated community and on further review of the rule, we decided to propose several minor changes.

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About the Proposed Amendments

First, the changes would delete the selenium limitations and standards from sections of the Metals Treatment and Recovery subcategory and would delete the barium, molybdenum, antimony, and titanium limitations and standards from the Oils Treatment and Recovery subcategory. We have learned that, under certain circumstances, the treatment technologies we used as the basis for the December 2000 limitations and standards do not remove these pollutants as we expected.

Second, the proposal reflects these changes in the Multiple Wastestreams subcategory, which covers facilities that treat or recover some combination of metal-bearing, oily, and organic waste receipts.

Third, the amendments revise a direct discharge BOD5 daily maximum limitation in the Multiple Wastestreams subcategory for combined metals and organics waste receipts to correct a publication error in the December 2000 rule.

Finally, the proposal requests information on the achievability of the molybdenum limitations in the Organics Treatment and Recovery Subcategory.

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Comment Period and Public Hearing

We will consider comments received within 30 days after publication of the proposed amendments in the Federal Register. If commenters request a public hearing, EPA will hold a pretreatment hearing at the end of the comment period. Persons wishing to attend or present formal comments at the public hearing should contact Elwood H. Forsht within 15 days from the date of publication in the Federal Register. (Docket ID No. OW-2003-0075.)

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How to Get More Information

You can get more information about this proposed rule and public hearing by contacting Elwood H. Forsht, U.S. Environmental Protection Agency, Office of Science and Technology, 4303T, 1200 Pennsylvania Avenue, N.W., Washington, DC 20460. (e-mail: forsht.elwood@epa.gov) You can also find the Federal Register notice by visiting the Internet at http://epa.gov/guide/cwt/

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